It says "at least"... on many channels there's videos with just a few views and videos with tons of views with much more than 10x difference
There is a different requirement if you only post shorts.
I shed a tear (and subscribe) when I encounter an incredibly useful video but they have “only” a few hundred subs.
More subscribers to a channel doesn’t save Google money at all.
Requiring X hours of views encourages posting longer videos, which costs them more to store and process.